Unable to Import user

I’m running Cisco Unity 7.0 Build 7.0(2) with Exchange 2007 & I’m facing a peculiar issue while recreating a user which was deleted from Unity.Initially the user account was existing in Unity but the user VM was messed up hence we deleted the account & trying recreating the user account. I can able to import new user successfully but this particular user account was not showing up when I try to import from console. Any solution would be very much appreciated.